Calculate the required power of the optimum in-line blender for an alum coagulant in the coagulation process if the mechanisms of coagulation is adsorption/destabilization. The design flow rate for a water treatment plant is 106.389 l/s and the design water temperature is 17 0C. Note that the design criteria preferred that the G in the range 3000 to 5000 s-1 , detention time t of about 0.5 s, and head loss of 0.3 to 0.9 m.

Calculate the required power of the optimum in-line blender for an alum coagulant in the coagulation process if the mechanisms of coagulation is adsorption/destabilization. The design flow rate for a water treatment plant is 106.389 l/s and the design water temperature is 17 0C. Note that the design criteria preferred that the G in the range 3000 to 5000 s-1 , detention time t of about 0.5 s, and head loss of 0.3 to 0.9 m.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Please include Equations. This is for a water and wastewater review, it is not for a grade. I just need to understand the problem.
A conventional aeration tank is to treat a flow of 0.8 mgpd of primary effluent with a BOD of 125 ppm. The MLSS concentration is to be maintained at 1800 ppm, and a food -to-microorganism (F/M) ration of 0.4 is specified. Compute the required volume of the aeration tank. If the SWD is to be 15 ft and the tank length to be three times its width, how long should the tank be.
Q- ASP is used to treat a waste water flow of 2MLD having BOD5 of 250 mg/lit. The biomass concentration in the aeration tank is 2500 mg/lit and the concentration of biomass leaving the system is 80 mg/lit, the aeration tank has a volume of 200m³. Find the hydraulic retention time HRT.
Liquid alum is delivered to a water treatment plant which contains 642.3 milligrams of alum per milliliter of liquid solution. Jar tests indicate that the best alum dose is 8 mg/L. Determine the setting on the liquid alum chemical feeder in milliliters per minute when the flow is 2.2 MGD.
(0 Awastewater sample is being analyzed to determine its BOD content. The sample is diluted in order to perform the test: 295 ml. of distilled water are added to 5 ml of sample to fill the 300 ml BOD bottie. The bottle has an initial dissolved oxygen concentration of 7.9 mg/L After incubating 5 days, the dissolved oxygen concentration is 45 mg/L a. What is the S-day BOD of the wastewater? h. The deoxygenation rate constant, k. is 0.013 day What is the ultin BOD of the wastewater? ) A community normally levies a sewer charge of 20 cents/m' (S0.20/m).
12.60 The aeration tank for a completely mixed aeration process is being sized for a design waste- water flow of 7500 m³/d. The influent BOD is 130 mg/l with a soluble BOD of 90 mg/l. The design effluent BOD is 20 mg/l with a soluble BOD of 7.0 mg/l. Recommended design para- meters are a sludge age of 10 d and volatile MLSS of 1400 mg/l. Selection of these values takes stants from a bench-scale treatability study are Y into account the anticipated variations in wastewater flows and strengths. The kinetic con- 0.60 mg VSS/mg soluble BOD and k₁ = 0.06 per day. Calculate the volume of the aeration tank, aeration period, food ganism ratio, and excess biomass th
In a raw water treatment plant, 34560 m³/day of raw water having density of 1000 kg/m³ and kinematic viscosity of 10-6 m²/sec is required to be processed. The rapid mixing tank imparts a velocity gradient of 830 s-1 to blend 38 mg/lt of alum with the flow for a detention period of 2 minutes. The mechanical horse power input required for rapid mixing is HP. (Rounded off to two decimal places)
The results of a jar test on a surface water supply sample revealed that the optimum dose of alum (Al2(SO4)3.14H2O) as coagulant is 17 mg/L. Furthermore, the water has total alkalinity = 50 mg/L as CaCO3; pH = 7.8; and residual turbidity at optimum alum dose = 4 NTU. The water treatment plant has a mean flow of 10m3/hour. Determine: The kg of alum per year needed in the operation of the plant. The residual alkalinity in the sample, following the addition of alum at optimum dose. Solve parts (a) and (b) if instead of alum, ferric chloride (FeCl3) were used as coagulant. Assume the numerical jar test results are the same as those with alum.
Example (Activated Sludge Process) - Completely Mixed with Recycle A completely mixed activated sludge process, treating a municipal wastewater, has a primary clarifier effluent BOD, of 135 mg/L. The design MLSS is 3590 mg/L, and the MLVSS is 80% of the MLSS. The plant permit is for an effluent BOD, of 20 mg/L and 20 mg/L suspended solids. The effluent suspended solids have a BOD, of 0.65 mg BOD, / mg suspended solids. The underflow solid concentration (MLVSS) is 10,000 mg/L. If umax = 3.0 day, Ks 60 mg/L, Y= 0.50 mg MLVSS / mg BOD, removed, ka= 0.1 day, and the influent flow is 0.25 m/sec, determine the following: 1. The required reactor detention time, 0. 2. The reactor basin volume, V, in m³. 3. The net waste activated sludge produced each day (kg/day). 4. The mass of solids (both volatile and inert) to be wasted each day (kg/day). The return sludge flow rate the recycle ratio. 6. The F/M ratio. 7 June 2021 Dr. Dawood Eisa Sachit Biological Wastewater Treatment 47
Please very fast Subject watewater engineering
Calculate theoretical oxygen requirement (kg/day) of a complete - mix activated sludge process treating domestic wastewater having flowrate of 1.00 m³/sec. BOD5 and ammonia concentrations of settled wastewater are 250 mg/L and 50 mg/L, respectively. a) If the system includes complete carbon removal and nitrification. (classical activated sludge) b) If the system includes complete carbon removal, nitrification and denitrification (Pre- denitrification).
Q-ASP is used to treat a waste water flow of 2MLD having BOD5 of 250 mg/lit. The biomass concentration in the aeration tank is 2500 mg/lit and the concentration of biomass leaving the system is 80 mg/lit, the aeration tank has a volume of 200m³. Find the sludge age.